Table of Contents Subject Page New X5 SAV Technical Comparisons (E53 vs E70) Technical Data E70 Body Overview Repair Solution Frontal Impact Side Impact Rigidity
Initial PrintDate: 10/06Table of ContentsSubject PageIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4Seat Equipment Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4Second Row Seating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6Third Row Seating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7Basic/Sport Driver and Passenger Front Seats . . . . . . . . . . . . . . . . . .8Driver Seat Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12Driver Seat Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13Seat Heating Power Reduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13Driver Seat Lumbar Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14Driver Seat Memory Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14Front Passenger Seat Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17Front Passenger Seat Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18Front Passenger Seat Lumbar Support . . . . . . . . . . . . . . . . . . . . . . . . . .19Front Passenger Seat Memory Function . . . . . . . . . . . . . . . . . . . . . . . . .19Multifunction Driver and Passenger Seats . . . . . . . . . . . . . . . . . . . . .20Seat Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24Seat Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25Quick Heating Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25Seat Heating Power Reduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26Lumbar Support Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26Seat Memory Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26Active Seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27Low Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31Active Seat Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32Second Row Seats (Rear Seat) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34Rear Seat Heating w/out Automatic Rear-cabin Air Conditioning . . . .34Rear Seat Heating w/Automatic Rear-cabin Air Conditioning . . . . . . . .37Second Row Seat Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40The Large Seat Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40The Small SeatSection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40Junction-Box ECU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41Third Row Seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42Seat-position recognition, US version . . . . . . . . . . . . . . . . . . . . . . . . . . . .42Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43E70 SeatsRevision Date: Subject PageBLANKPAGE SeatsModel: E70Production: From Start of Production 3E70 SeatsAfter completion of this module you will be able to:• Describe the different seat options available on the E70• Identify the different functions of the available seat options on the E70 4E70 SeatsSeat Equipment OptionsThere is a comprehensive range of seat equipment for the E70. Essentially, there arethree different seat models available.The seat models are:• Basic seat (Not for U.S. vehicles)• Sport seat option• Multifunction seat (comfort seat) option.Semi-electric and electric versions of the basic seat are not offered in the U.S.An electric version of the sport seat is offered. The table below shows the differenttypes of seat adjustment for the seat models.Each has electric seat-height and backrest inclination adjustment. The seats can beexpanded to include assorted electrical functions. These functions are listed in the tablein the next page.Introduction 5E70 SeatsThe front side airbag has been integrated in the backrest of the driver and front passen-ger seat.Note: Further information on the side airbag, seat-occupancy recognition andthe belt tensioner can be found in the Product Information "AdvancedCrash Safety Management E70". The multifunction seat can be ordered with the active-seat function. In contrast to theprevious models, the seat cushion is moved no longer by electrohydraulic but rather byelectro-pneumatic means. The advantage of electro-pneumatics lies in the fact that theoverall weight of the seat is reduced.This in turn reduces fuel consumption and lowersdamage to the environment by pollutants.44The front side airbag has been integrated inthe backrest of the driver's and frontpassenger's seat.3Further information on the side airbag,seat-occupancy recognition and the belttensioner can be found in the ProductInformation "Advanced Crash SafetyManagement E70". 1The multifunction seat can be ordered withthe active-seat function.In contrast to the previous models, the seatcushion is moved no longer byelectrohydraulic but rather byelectropneumatic means. The advantage ofelectropneumatics lies in the fact that theoverall weight of the seat is reduced.This in turn reduces fuel consumption andlowers damage to the environment bypollutants.Electrical seat function Basic seat Sport seat Multifunction seatDriver Passenger Driver Passenger Driver Passenger121212121212Seat-height adjustment 6 6 6 6 6 6 6 6 6 6 6 6Longitudinal seat adjustment 66666666Seat-inclination adjustment 6 6 6 6 6 6 6 6Seat-depth adjustment 66 6 6Seat/backrest heating 6 6 6 6 6 6 6 6 6 6 6 6Backrest-inclination adjustment 666 6666 6666 6Backrest-width adjustment 6 6 6 6Backrest-head adjustment 66 6 6Lumbar support 6 6 6 6 6 6 6 6 6 6 6 6Head-restraint height adjustment 66666666Seat memory 6 6 6 6 6 6Active seat 66Seat climate/ventilation 6 6 Second Row SeatingThe E70 is a five-seater in its standard equipment specification, two seats in the front(driver and Passenger) and three seats in the row just behind the front seats. This isrefered to as second row seating (back seat). It offers the opportunity of folding downthe backrest completely, thereby increasing the luggage-compartment volume.Thebackrest are divided into two parts, the ratio being 60/40.Front and Second Row Seating Note: Rear Seat heating can be ordered as an option.6E70 Seats 7E70 SeatsThird Row SeatingThe Passenger seating capacity can be extended to seven by ordering the third row seat-ing option.The additional two seats are situated in the luggage compartment and can befolded down completely. This row of seats is refered to as third row seating or 5 + 2 seat concept and are notequipped with seat heaters. However, an independent heating unit option is available justfor the third row seats. Third Row Seats 8E70 SeatsBasic/Sport Driver and Passenger Front SeatsBasic/Sport Driver and Passenger Front Seat w/ Memory function Circuit Diagram 9E70 SeatsBasic/Sport Driver and Passenger Front Seat w/ Memory function Circuit Diagram LegendIn the case of an electric driver seat (1) not fitted with a lumbar support, the seat adjust-ment switches (7) are read in directly by the seat module (8). The seat-adjustmentswitches are resistance-coded. On an electric front passenger seat (24), the seat-adjustment switches (25 to 27) actuatethe adjustment motors (30 to 34) directly.Index Explanation Index Explanation 1 Driver's seat20 Motor for folding-mirror function, passenger side 2 Motor, seat-height adjustment21 Potentiometer, memory position, front passen-ger side 3 Motor, longitudinal seat adjustment22 Electrochromic door mirror, passenger side 4 Motor, seat-inclination adjustment23 Adjustment motors, door mirror, front passengerside 5 Motor, backrest-inclination adjustment24 Front passenger seat6 Motor, head-restraint height adjustment25 Seat-adjustment switch, seat height7 Seat-adjustment switch with memory buttons26 Seat-adjustment switch, seat length8 Seat module, driver side27 Seat-adjustment switch, seat inclination 9 Switch block, driver door (SBFA)28 Seat-adjustment switch, backrest inclination 10 Adjustment motors, door mirror ,driver's side29 Seat-adjustment switch, head restraint height11 Electrochromic door mirror, driver side30 Motor, head-rest height adjustment12 Potentiometer, memory position, driver side31 Motor, backrest-inclination adjustment13 Motor for folding-mirror function, driver side31 Motor, seat-inclination adjustment14 Door-mirror heating, driver side33 Motor, longitudinal seat adjustment15 Door mirror, driver side34 Motor, seat-height adjustment16 Footwell module FRMK-CAN BodyCAN 17 Junction-box ECUKL 30g Terminal 30g 18 Door mirror, front passenger sideKL 58g Terminal 58g 19 Door-mirror heating, front passenger side LIN-Bus Local interconnectnetwork bus 10E70 SeatsBasic/Sport Driver Seat w/Heating, Memory and Lumbar Support Circuit Diagram [...]... retained however. Fan Stages: 33 E70 Seats A/C stage Fans, seat Fans, backrest 3 High High 2 High Low 1 Low Low 0 OFF OFF 16 E70 Seats B asic/Sport Front Passenger Seat w/Heating and Lumbar Support Circuit Diagram Seats Model: E70 Production: From Start of Production 3 E70 Seats After completion of this module you will be able to: • Describe the different seat options available on the E70 • Identify the different... (K-bus prot ocol) 21 Backrest heating LIN-B us Local interconnect network bus 20 E70 Seats Multifunction Driver and Passenger Seats Multifunction Driver Seat, Circuit Diagram 8 E70 Seats Basic/Sport Driver and Passenger Front Seats Basic/Sport Driver and Passenger Front Seat w/ Memory function Circuit Diagram 14 E70 Seats The Power Reduction Stages Are: • Operation of seat heating in Stage 2 only •... Information. 42 E70 Seats 36 E70 Seats R ear Seat Heating w/out Automatic Rear-cabin Air Conditioning Circuit Diagram 5 E70 Seats The front side airbag has been integrated in the backrest of the driver and front passen- ger seat. Note: Further information on the side airbag, seat-occupancy recognition and the belt tensioner can be found in the Product Information "Advanced Crash Safety Management E70& quot;.... active seat/lumbar-support adjustment 13 Air supply, active seat 38 E70 Seats R ear Seat Heating w/Automatic Rear-cabin Air Conditioning Circuit Diagram Second Row Seating The E70 is a five-seater in its standard equipment specification, two seats in the front (driver and Passenger) and three seats in the row just behind the front seats. This is refered to as second row seating (back seat). It offers... for the seat heating. 34 E70 Seats Second Row Seats (Rear Seat) Index Explanation Index Explanation 1 Seat-heating button, driver's side, rear 2 Seat-heating button, front passenger side, rear Heating stage Seat Backrest LED 2 Normal Normal 2 1 Lo w Lo w 1 0 OFF OFF OFF 4 E70 Seats Seat Equipment Options There is a comprehensive range of seat equipment for the E70. Essentially, there are three... mal- functioning! Seat-position recognition mal- functioning! Have the system checked by BMW Service at the next available opportunity. Rear seat not locked! Rear seat/Backrest Left or right rear seat not locked. Incr eased risk of injury in the event of an impact because seat belt is ineffective! 44 E70 Seats 25 E70 Seats Seat Heating The seat heating for the multifunction seat has four heating circuits.... heating can be ordered as an option. 6 E70 Seats 13 E70 Seats A locked up motor is detected by means of the current-measurement function integrated in the seat module. In this case, the relays are no longer actuated thus shutting down the motors. The memory setting for this motor is inhibited until the motor is no longer locked. Note: In the case of lumbar support seats, the seat-adjustment switches... available seat options on the E70 17 E70 Seats B asic/Sport Front Passenger Seat w/Heating and Lumbar Support Circuit Diagram Legend This circuit diagram features basic and sport, front passenger side seat, with seat heating and lumbar support. The seat bus is installed only from the lumbar support between the seat-adjustment switches (5) and the seat module (15). In the case of seats not equipped with... door mirrors is stored in the footwell module. Within the framework of Personal Profile, the data is assigned to the current remote con- trol key when the memory position is stored. 15 E70 Seats NOTES PAGE 9 E70 Seats B asic/Sport Driver and Passenger Front Seat w/ Memory function Circuit Diagram Legend In the case of an electric driver seat (1) not fitted with a lumbar support, the seat adjust- ment... 6 Head-restraint height adjustment 66666666 Seat memory 6 6 6 6 6 6 Active seat 66 Seat climate/ventilation 6 6 Subject Page BLANK PAGE 24 E70 Seats Seat Adjustments The multifunction seat option contains the memory function for the driver and front pas- senger seats. Multifunction seats can be electrically adjusted in the following directions: • Seat height • Seat distance to steering wheel (longitudinal seat . . . . . . . . . . .4 3E70 SeatsRevision Date: Subject PageBLANKPAGE SeatsModel: E70Production: From Start of Production 3E70 SeatsAfter completion. position is stored. 1 5E70 SeatsNOTESPAGE 1 6E70 SeatsBasic/Sport Front Passenger Seat w/Heating and Lumbar Support Circuit Diagram 1 7E70 SeatsBasic/Sport Front